DOUGLAS RANGE URANIUM PROJECT UPDATE
Yellow Rock Resources Ltd (YRR) refers to its previous announcement that Australian Uranium Ltd (AUL), a controlled entity of YRR had located at least two significant uranium anomalies on its Douglas Range tenement (E25339) in the Northern Territory.
This area has little publicly-reported information on uranium mineralization and the Northern Territory Geological Survey (NTGS) sample and drilling database contains only minor reference to uranium occurrences in soils (BMR 1980’s data).
After completing follow-up fieldwork, uranium anomalies are now confirmed at three locations in the northern, central and eastern parts of the Douglas Range tenement (E25339) and are distributed around three traverse lines. The northern (West McKinley) traverse is approximately 0.6 kilometres in length, the Central traverse is 14 kilometres long and the South-East traverse is 1.6 kilometres long. All traverses show strong zones of high uranium response (between 3 and 10 times background value) from radiometric material confirmed from 80-metre spaced scintillometer readings. The areas have been further investigated during the August and September field campaign and several close-spaced grids have been surveyed using a scintillometer.
The West McKinley uranium anomaly is located within the drainage basin of the McKinley River and probably represents palaeochannel deposits under recent alluvium or sheetwash overlying Proterozoic sediments. The Central anomaly is spread over a wide area and spans several geological environments including Proterozoic basement metasediments (Burrell Creek and Mt Bonnie Formations) and Palaeozoic platform cover sediments. The geological setting of the south-east anomaly is within lateritic ironstones and pisolites of Tertiary age overlying Proterozoic Mt Bonnie Formation sediments.
The three traverses and the lease geology are shown in Figure 1 and the detailed radiometric contour data is shown in Figures 2, 3 and 4.
During the fieldwork campaign at Douglas Range Project the following uranium anomalies were identified and confirmed from calibrated scintillometer readings:
�� McKinley (600m long) – anomalies to 210 cps (65 cps background)
�� Central (14,000m long) – anomalies to 220 cps (50 cps background)
�� South-east ( 1,600m long) – anomalies to 390 cps (65 cps background)M Headline Vendor Time
The instruments used for ground surveys were Scintrex and Geogamma portable scintillometers. Surveys were conducted along lines at sample intervals of 80 metres. The areas tested were checked and calibrated at the start and end of each line. Also comparison readings were made between the two scintillometer models over the same lines with repeat readings. A very close degree of correlation between Scintrex and Geogamma readings showed that the measurements against background levels were comparable and that the uranium anomalies were validated in both cases.
see ASX announcement for full details
GPN
greater pacific gold limited
